SN74HC240N

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The SN74HC240N is a Hex Buffer/Converter that can be used to convert voltage between TTL and CMOS levels. It is designed for low voltage (2.7V–5.5V) applications, and can be used in a wide variety of applications ranging from computers to consumer electronics. The SN74HC240N consists of six independent non-inverting buffer/converter gates, each with 3-state outputs for increased flexibility.

Application Field

The SN74HC240N is a versatile device which can be used in many different applications, but it is most commonly used in converting TTL-level logic signals to CMOS-level logic signals. It can also be used in voltage-level shifting, signal buffing, logic interfacing, switch debouncing, signal translation, signal chopping, and other applications where the need to convert voltage levels arises.

The SN74HC240N can be used to interface TTL and CMOS logic circuits, allowing signals from TTL circuits to be used in CMOS circuits, and vice versa. It can also be used to transfer signals from other logic families, such as ECL and NSAIL, to either TTL or CMOS levels. It is also useful for level-shifting and clamping applications where the input signal voltage needs to be shifted to an appropriate level for the driving circuit.

The SN74HC240N has low power consumption and can operate at temperatures up to 70°C, making it ideal for use in ASIC applications and in many portable devices.

Working Principle

The SN74HC240N is a hex buffer/converter that converts TTL-level inputs to CMOS-level outputs. The circuit consists of six gates, each with one input, one output, and two control signals (selectable output enable and active low input enable). When the output enable input is high (active low), the output will be the logical inverse of the input, and the output will be high impedance when the output enable is low.

When the active low input enable input is low, the input will be ignored, and the output will remain the same as before. When the input enable input is high, the output will be the logical inverse of the input. The inputs and outputs of the SN74HC240N are all TTL and CMOS compatible, allowing the device to be used to interface different logic families.

The SN74HC240N has a low propagation delay of 8.5 ns, making it ideal for high speed applications. Its low power consumption (1.5mA quiescent) makes it a good choice for portable devices and applications where power efficiency is critical.

The SN74HC240N is a hex buffer/converter that provides an efficient way to convert TTL to CMOS, or CMOS to TTL. It has low power consumption and a fast propagation delay, making it a useful part for many different types of applications. Its low power and fast response make it ideal for use in ASICs and portable devices.

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